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Exoplanet Biosignatures: Future Directions

机译:系外行星生物特征:未来方向

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We introduce a Bayesian method for guiding future directions for detection of life on exoplanets. We describe empirical and theoretical work necessary to place constraints on the relevant likelihoods, including those emerging from better understanding stellar environment, planetary climate and geophysics, geochemical cycling, the universalities of physics and chemistry, the contingencies of evolutionary history, the properties of life as an emergent complex system, and the mechanisms driving the emergence of life. We provide examples for how the Bayesian formalism could guide future search strategies, including determining observations to prioritize or deciding between targeted searches or larger lower resolution surveys to generate ensemble statistics and address how a Bayesian methodology could constrain the prior probability of life with or without a positive detection. Key Words: ExoplanetsBiosignaturesLife detectionBayesian analysis. Astrobiology 18, 779-824.
机译:我们介绍了一种贝叶斯方法,用于指导探测系外行星生命的未来方向。我们描述了对相关可能性施加限制所必需的经验和理论工作,包括因更好地了解恒星环境,行星气候和地球物理学,地球化学循环,物理和化学的普遍性,进化史的偶然性,生命属性而出现的那些可能性。一个新兴的复杂系统,以及驱动生命出现的机制。我们提供了贝叶斯形式主义如何指导未来搜索策略的示例,包括确定观察结果以对目标搜索或更大范围的低分辨率调查进行优先级排序或决定,以生成整体统计数据,以及解决贝叶斯方法论如何在有或无生命的情况下限制先验生命的可能性。阳性检测。关键词:系外行星生物签名生命检测贝叶斯分析。天体生物学18,779-824。

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